"We have avoided sharing this information with you until now for fear of and in an attempt to avoid a conflict," Rice says in the cable."I would like to inform you that the Israeli attack was aimed at destroying the secret reactor built by Syria in a desert area in the east of the country called al-Kibar," the cable quotes her as saying. "The Israeli mission was successful – the reactor was destroyed without an option of rehabilitation. Syria completed the site's evacuation, got rid of the evidence of what existed in the area and set up a new building on the site."

The former secretary of state added, "We believe, based on solid evidence, that North Korea helped Syria build the reactor – and we have decided that it's time to share more information on this matter with you."

Rice also details the intelligence gathered by Israel and the US preceding the attack.

"We have good reason to believe that the reactor was not built for peaceful purposes," she said in the cable. "First of all, we estimate that it was not designed as a power station, was isolated from populated communities and was not suitable for research purposes.

"Second, Syria took far-reaching steps to keep the real nature of the site secret. Third, by acting secretly and failing to provide representatives of the International Atomic Energy Agency with sketches of the site, as required by the agreement it signed, it missed the purpose of means of supervision aimed at providing the international community with the confirmation that the reactor is part of a peaceful plan."

Based on this intelligence, Rice concluded in the cable that "the hiding and lies spread by Syria in the months after the attack are clear proof that it has something to hide